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Why is choosing the correct instrument important in an experiment?

Answer and explanation

Correct answer: It provides suitable and accurate measurement

The direct answer is B: the correct instrument provides a suitable and accurate measurement. In an experiment, we first identify what quantity must be measured, such as length, mass, temperature, or time. Then we select an instrument designed for that quantity and use its scale correctly. Step by step: identify the quantity, choose the matching instrument, check its range and smallest division, take the reading carefully, and write the unit. A is wrong because attractive appearance does not improve measurement. B is correct because suitable instruments reduce error and give meaningful data. C is wrong because an instrument does not change the scientific question. D is wrong because proper instruments help record results rather than hide them. Memory cue: match the instrument to the quantity and unit.

Related tags

ScienceInstrumentsAccuracyNature And Meaning Of ScienceExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceClass 9 Mcq

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